1. Université de Neuchâtel, Institut de Physique, Laboratoire de chimie physique des surfaces, Rue Emile-Argand 11, 2009- Neuchâtel, Switzerland
2. Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
3. IBM Research GmbH, Zurich Research Laboratory, 8803 Rüschlikon, Switzerland
4. Ruprecht-Karls-Universität Heidelberg, Physikalisch-Chemisches Institut, Im Neuenheimer Feld 253, 69120 Heidelberg, Germany
5. Metalor Technologies SA, Av. du Vignoble, Case postale 9, 2009 Neuchâtel 9, Switzerland